Janet's Foss

A picturesque waterfall downstream of
Gordale Scar
near
Malham,
Janet's Foss is where Gordale Beck cascades over a tufa capped limestone outcrop into a deep pool in a wooded limestone gorge.
On the far bank is
Janet's Cave,
a dark hole which leads actually nowhere.

Janet was the "Queen of the Fairies", and "Foss" is a nordic word for waterfall, this being a magical place where fairies are said to exist.